On “Border to Beltway”‘s visit to Kilbourne Hole, after we whet our appetite with Hunt’s Hole, Michael finds a xenobomb. Ernie and Boris look on with envy:
A “xenobomb” is a xenolith (in this case, of mantle peridotite), slathered in a coating of lava and tossed out of a volcano in the middle of a liquid droplet (a bomb). Here’s what they look like in cross-section:
You can experience some of the wonder of these extraordinary structures by exploring this macro GigaPan…
[gigapan id=”142656″] link
Ooooooo. Mark that as a potential place to visit. Is collecting permitted there?
Sure is.
I put the xenobomb as my desktop on my school computer, and the students think it’s marijuana. We’re doomed.